/**
 * Copyright (c) 2016-2019 人人开源 All rights reserved.
 *
 * https://www.renren.io
 *
 * 版权所有，侵权必究！
 */

package io.renren.common.utils;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import org.apache.http.HttpStatus;

import java.util.HashMap;
import java.util.Map;

/**
 * 返回数据
 *
 * @author Mark sunlightcs@gmail.com
 */
public class Resp extends HashMap<String, Object> {
	private static final long serialVersionUID = 1L;
	//自定义设置数据方法
	public Resp setData(Object data){
	    put("data",data);
	    return  this;
    }

    /**
     * @param key 获取指定key的名字
     */
    public <T> T getData(String key, TypeReference<T> typeReference){
        // get("data") 默认是map类型 所以再由map转成string再转json
        Object data = get(key);
        return JSON.parseObject(JSON.toJSONString(data), typeReference);
    }
    //typeReference是一个数据类型
    //类型逆转方法
    public  <T> T getData(TypeReference<T> typeReference){
	    Object data = get("data");
	    //先将对象转化为字符串
	    String s = JSON.toJSONString(data);
	    //将字符转化为输入的数据类型
	    T t = JSON.parseObject(s,typeReference);
	    return  t;
    }

    public Resp() {
		put("code", 0);
		put("msg", "success");
	}
	
	public static Resp error() {
		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, "未知异常，请联系管理员");
}
	
	public static Resp error(String msg) {
		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, msg);
	}
	
	public static Resp error(int code, String msg) {
		Resp resp = new Resp();
		resp.put("code", code);
		resp.put("msg", msg);
		return resp;
	}


	public static Resp ok(String msg) {
		Resp resp = new Resp();
		resp.put("msg", msg);
		return resp;
	}
	
	public static Resp ok(Map<String, Object> map) {
		Resp resp = new Resp();
		resp.putAll(map);
		return resp;
	}
	
	public static Resp ok() {
		return new Resp();
	}

	public Resp put(String key, Object value) {
		super.put(key, value);
		return this;
	}

    public int getCode() {
	      return (Integer)this.get("code");
    }
}
